Multi-cylinder synchronous jacking system for tower crane and tower crane

A synchronous jacking and jacking technology, used in fluid pressure actuation system testing, cranes, mechanical equipment, etc., can solve problems such as poor synchronization of jacking cylinders, improve jacking efficiency, reduce personnel safety risks, and improve efficiency Effect

Active Publication Date: 2020-01-10
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the problem of poor synchronism of jacking cylinders in the process of multi-cylinder jacking in the prior art

Method used

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  • Multi-cylinder synchronous jacking system for tower crane and tower crane

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Embodiment Construction

[0048] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0049] First of all, it should be noted that in the present invention, the terms "first", "second", ..., etc. are only used to distinguish different technical features, and are not used to limit the priority of technical features. Under normal circumstances, the effects that these technical features can achieve are basically the same.

[0050]In addition, in the present invention, in the case of no contrary description, the used orientation words such as "up, down, left, right" usually refer to the up, down, left, and right shown in the accompanying drawings; "Outside" refers to inside and outside with respect to the outline of each component itself.

[0051] ...

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Abstract

The invention relates to the technical field of hydraulic equipment, and discloses a multi-oil-cylinder synchronous jacking system for a tower crane and the tower crane. The multi-oil-cylinder synchronous jacking system for the tower crane comprises an oil supply main oil path, a first reversing valve, at least two jacking oil cylinders, a first jacking control oil path, a second jacking control oil path and a speed adjusting valve, wherein the speed adjusting valve can control the flow of oil liquid entering the jacking oil cylinders, and accordingly the jacking oil cylinders can synchronously run. The multi-oil-cylinder synchronous jacking system effectively solves the technical problem that oil cylinder jacking of a double- cylinder jacking system is not synchronous, due to great improvement of the synchronous performance, the safety of the jacking system is enhanced, and the service life of guiding wheels is effectively prolonged. The jacking process is smoother, the operation timeis shortened, and efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of hydraulic equipment, in particular to a multi-cylinder synchronous jacking system for a tower crane and a tower crane having the same. Background technique [0002] With the development of the times and the unprecedented prosperity of the construction industry, large-scale power stations, airport projects, and large-scale offshore platform construction projects are increasing, and the market demand for "super-large tower cranes" is also increasing. The requirements for the degree of humanization are also getting higher and higher. [0003] At present, most of the "jacking systems" used by super-large construction cranes are "double cylinder jacking systems" (2 jacking cylinders), that is, the system consists of one "pump station" and two "jacking cylinders". . For the "dual cylinder jacking system", the synchronization accuracy of the operation of the two oil cylinders is a crucial technical index of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/08F15B13/02F15B19/00B66C23/62
CPCB66C23/62F15B11/08F15B13/02F15B19/00
Inventor 向小辉
Owner ZOOMLION HEAVY IND CO LTD
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